Mr imaging device

TL;DR: In this article, the authors attach a tag to an image by a multiple spin echo method without deteriorating the time efficiency of the sequence by separating a primary echo component and a stimulated echo component by controlling a gradient magnetic field pulse.

Abstract: PURPOSE:To attach a tag to an image by a multiple spin echo method without deteriorating the time efficiency of the sequence by separating a primary echo component and a stimulated echo component by controlling a gradient magnetic field pulse CONSTITUTION:By irradiating an examinee 3 with one piece of impulse RF pulse 21 and plural refocus RF pulses 22-25 succeeding thereto, an echo signal is generated successively, and simultaneously with RF pulse, slice selection gradient magnetic field pulses 51-55 are applied Also, in the case of applying phase encoding gradient magnetic field pulses 41, 43, 45 and 47, and read-out gradient magnetic field pulses 31-35, when a symmetric property of the read-out gradient magnetic field pulse applied before and after the refocus RF pulses 22-25 or a symmetric property of the phase encoder gradient magnetic field pulse and its rewinding gradient magnetic field pulses 42, 44, 46 and 48 is broken down, a primary echo component and a stimulated echo component are separated on a raw data space, and a reconstituted image is obtained